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Many desserts are covered in sand. But some have mountains, rocks, or lakes that have dried up in the heat. The Great American Dessert has cliffs(悬崖) that have been made into amazing and beautiful shapes by the wind. The Sahara Desert in Africa is mostly sand. The Australian Desert has red sand.
Sometimes it does not rain for a whole year in the desert. But there is water deep under the ground and some plants have roots that go very deep to find it. Other plants have roots that spread out(延伸) a long way so they can suck up the rain as soon as it falls.
One desert plant is the cactus, which has long, spreading roots. The cactus stores water inside its hard skin. This skin protects it from heat and cold.
Camels are a bit like cactus plants! They store water too—inside their bodies. They have special fur which protects them from the sun during the day and keeps them warm at night.
Some other animals live in deserts, too. They have to be very good at seeing and hearing because most of them only come out at night. This is why many desert animals have extra big eyes or ears.
A desert fox has bigger ears than a normal for. A gerbil has huge eye, so that it can see at night. It stays cool in the day by staying underground, like most desert animals.
Some people live in the desert but they always make their homes near an oasis. An oasis is where water comes from an underground river. Near an oasis, people can grow lots of plants and keep animals.
Life is hard in the desert, for people, animals and plants. But desert people like to live there.
【小题1】A desert is very dry because__________.
| A.it is sandy | B.there is so little rain |
| C.the wind is strong | D.there is no water deep under the ground |
| A.围堵 | B.讨好 | C.释放 | D.吸收 |
| A.the sunlight is too strong in the day | B.they need to see and hear well at night |
| C.it is very cold at nigh | D.they store water in them. |
| A.storing water in side their bodies | B.drinking water as much as they can |
| C.staying underground | D.growing lots of plants |
| A.Desert people like to live in the desert though life is hard. |
| B.People in the desert usually fry eggs on the ground. |
| C.Camels have special fur to store water. |
| D.All the deserts are covered in sand. |
There are several causes leading to poor eyesight like not enough food, genes (基因) and aging (老化). Televisions, computers and reading are also the causes of having poor eyesight. If you happen to work in front of the computer, it is best to take a break every once in a while. Something dirty can cause redness and they will make you feel uncomfortable. It is bad for your eyes, too. If this happens, the best way is to clean your eyes by using cold water. You must also try your best to protect your eyes from harmful things. For example, sunglasses are not just for fashion but they can also serve as a great way to protect your eyesight form UV rays.
Eating healthy foods will do good to your eyesight. Remember that vitamins A, C and E are good for eyes. Try to eat food groups that have these vitamins. And you should do eye exercises because exercise protects your eyesight, too. If a person exercises regularly (定期地) and eats the right kind of food, his eyes will stay in good condition for a long time.
All above are natural ways of eye care that help us keep healthy eyes. Being happy all the time can be helpful to a person’s eyesight, too. In a world, eye care is very important, no matter how old a person is.
【小题1】_____ is the most important way to protect our eyes.
| A.Natural eye care | B.Taking medicine |
| C.Seeing the doctor | D.Being happy all the time |
| A.age | B.height | C.reading | D.computers |
| A.Eat healthy foods. | B.Clean the eye by using cold water. |
| C.Wear a pair of sunglasses. | D.Have a rest after working for a while. |
| A.沙尘 | B.闪电 | C.紫外线 | D.超声波 |
| A.Ways of Eye Care | B.Ways of Eye Exercises |
| C.Ways of Being Happy | D.Ways of Being Healthy |
A thousand years ago Hong Kong was covered by a thick forest. As more and more people came to 1 in Hong Kong, these trees were cut down and burnt. Now there is 2 forest left, though there are still some small areas covered with trees. We call these woods.
Elephants, tigers and many 3 animals were living in the thick forest. When people came to live in Hong Kong, the 4 began to die out. Early farmers grew rice and 5 pigs and chickens in the valleys. They cut down the trees and burnt them. They needed 6 to keep themselves warm in winter, to cook their food and to keep away the dangerous animals. Elephants quickly disappeared because there was not enough food for them. So did 7 of the wolves and tigers. Monkeys and many other animals soon 8 in the same way.
You might think that there are no longer any animals in Hong Kong 9 in the zoos. But there are still about 36 different animals 10 there. One of the most interesting of Hong Kong's animals is the barking deer. These are beautiful little animals 11 a rich brown coat and a white patch (补丁) under the tail. They look like deer but they are much smaller. They are less than two feet(英尺) 12 . They make a noise rather like a dog 13 . In Hong Kong the barking deer has only a real enemy-- 14 . People hunt these little animals though it is illegal (违法的). There are now not many barking deer left. So it is important 15 people to protect wild animals.
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Many people like animals and keep one or more as pets—dogs, cats and some kinds of birds. If you keep a dog or a cat as a pet, you must know how to look after it. A grown-up(成年) dog needs two meals a day, not more. And it can eat meat, fish, rice and some other things. Dogs like large bones(骨头), but don’t give them chicken bones. Remember to give them much clean water. A dog should have a clean, dry box for sleeping. Washing it once a week is good for its health. If it is ill, take it to a doctor. A healthy dog will bring you more pleasure.
Be careful when you have chosen a cat. It has two meals a day with some meat or fish. Cats drink a little milk every day. Sometimes give them vegetables to eat. Don’t forget that they need clean water to drink.
Take good care of your pets. They will be your good friends. Maybe they can give you some help when you need.
【小题1】Many people keep ____ as pets.
| A.pandas | B.elephants | C.chickens | D.cats |
| A.All the bones. | B.Big bones. | C.Chicken bones. | D.Small bones. |
| A.make | B.give | C.take | D.bring |
| A.orange | B.milk | C.water | D.milk and water |
| A.No, I don’t think so. | B.Yes, but only a little. |
| C.Yes, they will. | D.No, they won’t. |
A thousand years ago Hong Kong was covered by a thick forest. As more and more people came to 31 in Hong Kong, these trees were cut down and burnt. Now there is 32 forest left, though there are still some small areas covered with trees. We call these woods.
Elephants, tigers and many 33 animals were living in the thick forest. When people came to live in Hong Kong, the 34 began to die out. Early farmers grew rice and 35 pigs and chickens in the valleys. They cut down the trees and burnt them. They needed 36 to keep themselves warm in winter, to cook their food and to keep away the dangerous animals. Elephants quickly disappeared because there was not enough food for them. 37 did most of the wolves and tigers. Monkeys and many other animals soon 38 in the same way.
You might think that there are no longer any animals in Hong Kong 39 in the zoos. But there are still about 36 different animals 40 there. One of the most interesting of Hong Kong's animals is the barking deer. These are beautiful little animals 41 a rich brown coat and a white patch (补丁) under the tail. They look like deer but they are much smaller. They are less than two feet 42 . They make a noise rather like a dog 43 . In Hong Kong the barking deer has only a real enemy-- 44 . People hunt these little animals though it is illegal (违法的). There are now not many barking deer left. So it is important 45 people to protect wild animals.
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